I'm looking to upgrade from my NAD 2600. I'm looking to spend up to $350 and need a minimum of 75 rms a channel. I'm looking for a musical amp, some sort of sleeper thats well built and high current is right up my alley. Something like a belles, or maybe even a threshold. Open to diy built amps (I would be building a F5T but I don't have those funds right now).